97 Thundercat diagnosis help. again

[pompousporcup...]

the thundercat i've been riding has a very whiny noise which is in pretty much all gears. this makes me think a bearing has/is on its way out somewhere..but without opening things up, which is a fking ball ache, maybe someone can help who has had this before

the noise goes away pretty much entirely when i pull the clutch in. it is also less apparent under half/full throttle and when i let off it comes back again.

Chain tension has recently been set and alignment is correct and checked by mr MOT man. It rides fine. I've not noticed any issues at all, second gear (apparently known to be an issue) is not an issue. doesnt pop out/false neutral in any gear and otherwise i can't fault it.. its just the noise is making me worry

quick vid to show you the noise i mean:
https://youtu.be/YJSLobwDj_c

r32 skyline <3

[Jmh600]

When did you last charge the oil? My old monster made a similar Noise that completely went away when I changed it

Joe
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Jmhmotorcycles

[pompousporcup...]

a few hundred miles or so ago. i used Vision Synthetic 10W/40 iirc
It made the noise before i changed the oil which i think the previous owner had done not long before i got it

[RhynoCZ]

I think it is one of the bearings in the gearbox (output shaft is my guess), or the way the gears are machined.

I'd wait for other Thundercat owners, this might be just a feature. Re-name the thread so people know, we are talking about Thundercats.

By the way, what does this sign tell you?: https://youtu.be/YJSLobwDj_c?t=39s naughty, naughty OP.
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Jmh600]

My gsxr is a little whiney, never really worried. Just the straight cut gears
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Jmhmotorcycles

[pompousporcup...]

[weasley]

Is this a new noise or just something you have decided to tackle? TBH it sounds pretty much like mine always has ('cept your exhaust is fruitier than mine ).

Next time I ride mine I'll give it a go without earplugs and see if it's that loud. Some time around May OK for you?
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Yamaha XJ600 | Yamaha YZF600R Thundercat | KTM 990 SMT | BMW F900XR TE

[pompousporcup...]

its done it as long as i've had it weasley, although i've only really started riding it properly this month as i sorted the discs and MOT.

its works.. its just noisy. so im not going to do anything unless it actually is a problem and will get worserer with more miles

you not riding yours atm or is it a fairweather thing?

[Aceslock]

Yep, mines the same as well.

Can only hear it in lower gears though (probably cause high gears = fast = wind noise)
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Previous Bike: Skyjet SJ27
Sold: Yamaha YZF 600 R Thundercat. Sold: ZX636R
Current bike: R1 14B (Beast)

[weasley]

[pompousporcup...]

thats good to know, thanks Aceslock

@weasley if it suits your sir